/* ==========================================================================
   content.css — prose, post, lists, archive/tag/category, topics, home.
   Tokens come from hao.css. No raw colours here: both schemes via tokens.
   ========================================================================== */

/* ---------- Prose ---------- */
.hx-prose {
  color: var(--hx-fg);
  font-size: 16.5px;
  line-height: 1.85;
  overflow-wrap: anywhere;
  word-break: normal;
}
.hx-prose > :first-child { margin-top: 0; }
.hx-prose > :last-child { margin-bottom: 0; }
.hx-prose p, .hx-prose ul, .hx-prose ol, .hx-prose blockquote,
.hx-prose table, .hx-prose pre, .hx-prose figure, .hx-prose details { margin: 0 0 1.25em; }
.hx-prose h1, .hx-prose h2, .hx-prose h3, .hx-prose h4, .hx-prose h5, .hx-prose h6 {
  color: var(--hx-fg-strong);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  scroll-margin-top: calc(var(--hx-header-h) + 16px);
}
.hx-prose h1 { margin: 2em 0 0.8em; font-size: 1.75em; }
.hx-prose h2 { margin: 2.2em 0 0.8em; padding-bottom: 0.35em; border-bottom: 1px solid var(--hx-border); font-size: 1.45em; }
.hx-prose h3 { margin: 1.9em 0 0.6em; font-size: 1.2em; }
.hx-prose h4 { margin: 1.6em 0 0.5em; font-size: 1.05em; }
.hx-prose h5, .hx-prose h6 { margin: 1.4em 0 0.5em; font-size: 1em; color: var(--hx-fg-muted); }

.hx-prose a {
  color: var(--hx-fg-strong);
  text-decoration: underline;
  text-decoration-color: var(--hx-border-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--hx-dur);
}
.hx-prose a:hover { text-decoration-color: currentColor; }
.hx-prose strong { color: var(--hx-fg-strong); font-weight: 650; }

.hx-prose ul, .hx-prose ol { padding-left: 1.5em; }
.hx-prose li { margin: 0.3em 0; }
.hx-prose li > ul, .hx-prose li > ol { margin: 0.3em 0; }
.hx-prose li::marker { color: var(--hx-fg-faint); }

.hx-prose blockquote {
  padding: 0.2em 0 0.2em 1em;
  border-left: 3px solid var(--hx-border-strong);
  color: var(--hx-fg-muted);
}
.hx-prose blockquote > :last-child { margin-bottom: 0; }

.hx-prose img {
  display: block;
  max-width: 100%;
  margin: 1.5em auto;
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
}
.hx-prose figure { text-align: center; }
.hx-prose figcaption { margin-top: -0.75em; color: var(--hx-fg-muted); font-size: 0.875em; }
.hx-prose iframe, .hx-prose video { max-width: 100%; border: 0; border-radius: var(--hx-radius-lg); }

.hx-prose hr { margin: 2.5em 0; }

/* Inline code */
.hx-prose :not(pre) > code {
  padding: 0.12em 0.4em;
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-sm);
  background: var(--hx-bg-subtle);
  color: var(--hx-fg-strong);
  font-size: 0.86em;
  overflow-wrap: anywhere;
}
/* Code blocks */
.hx-prose pre {
  overflow-x: auto;
  padding: 14px 16px;
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
  background: var(--hx-code-bg);
  color: var(--hx-fg);
  font-size: 13.5px;
  line-height: 1.65;
  tab-size: 4;
  -webkit-overflow-scrolling: touch;
}
.hx-prose pre code { padding: 0; border: 0; background: none; font-size: inherit; white-space: pre; overflow-wrap: normal; }

/* Tables */
.hx-prose table {
  display: block;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.92em;
  line-height: 1.6;
}
.hx-prose th, .hx-prose td { padding: 8px 12px; border: 1px solid var(--hx-border); text-align: left; vertical-align: top; }
.hx-prose th { background: var(--hx-bg-muted); color: var(--hx-fg-strong); font-weight: 600; }

/* Details */
.hx-prose details {
  padding: 10px 14px;
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
  background: var(--hx-bg-muted);
}
.hx-prose summary { cursor: pointer; font-weight: 600; color: var(--hx-fg-strong); }

/* Math (MathJax renders inside these) */
.hx-prose .math.display { overflow-x: auto; overflow-y: hidden; margin: 1.25em 0; padding: 4px 0; }
.hx-prose mjx-container[display="true"] { overflow-x: auto; overflow-y: hidden; max-width: 100%; }

/* ---------- Shared list chrome ---------- */
.hx-list-page { padding-top: 8px; }
.hx-list-header { margin: 0 0 36px; }
.hx-list-title { margin: 0; color: var(--hx-fg-strong); font-size: 32px; line-height: 1.25; letter-spacing: -0.02em; }
.hx-list-desc { margin: 10px 0 0; color: var(--hx-fg-muted); }
.hx-list-count { margin: 8px 0 0; color: var(--hx-fg-faint); font-size: 13px; }
.hx-list-empty { margin: 24px 0; }
.hx-crumbs { display: flex; gap: 8px; margin: 0 0 12px; color: var(--hx-fg-muted); font-size: 13px; }
.hx-crumbs a { text-decoration: none; }
.hx-crumbs a:hover { color: var(--hx-fg); }

.hx-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 0 0 14px; }
.hx-section-title { margin: 40px 0 14px; color: var(--hx-fg-strong); font-size: 15px; font-weight: 600; letter-spacing: 0; }
.hx-section-head .hx-section-title { margin: 0; }
.hx-section-more { color: var(--hx-fg-muted); font-size: 13px; text-decoration: none; white-space: nowrap; }
.hx-section-more:hover { color: var(--hx-fg); }

/* Year-grouped post list */
.hx-year-group { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 0 16px; }
.hx-year-group + .hx-year-group { margin-top: 8px; }
.hx-year {
  margin: 0;
  padding-top: 18px;
  color: var(--hx-fg-faint);
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
}
.hx-post-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--hx-border); }
.hx-year-group:first-child .hx-post-list, .hx-home-section .hx-year-group:first-of-type .hx-post-list { border-top-color: var(--hx-border); }
.hx-post-item { border-bottom: 1px solid var(--hx-border); }
.hx-post-link {
  display: block;
  margin: 0 -12px;
  padding: 16px 12px;
  border-radius: var(--hx-radius);
  color: inherit;
  text-decoration: none;
  transition: background var(--hx-dur);
}
.hx-post-link:hover { background: var(--hx-bg-muted); }
.hx-post-item-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  color: var(--hx-fg-muted); font-size: 12.5px; font-variant-numeric: tabular-nums; line-height: 1.5;
}
.hx-post-item-cat {
  padding: 0 7px;
  border: 1px solid var(--hx-border);
  border-radius: 999px;
  background: var(--hx-bg-muted);
  font-size: 11.5px;
}
.hx-post-item-title {
  margin: 4px 0 0;
  color: var(--hx-fg-strong);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.005em;
}
.hx-post-link:hover .hx-post-item-title { text-decoration: underline; text-decoration-color: var(--hx-border-strong); text-underline-offset: 3px; }
.hx-post-item-excerpt {
  display: -webkit-box;
  margin: 4px 0 0;
  overflow: hidden;
  color: var(--hx-fg-muted);
  font-size: 14px;
  line-height: 1.65;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

/* Pager */
.hx-pager { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; margin: 32px 0 0; }
.hx-pager > :last-child { justify-self: end; }
.hx-pager-status { color: var(--hx-fg-muted); font-size: 13px; font-variant-numeric: tabular-nums; }

/* Badges cloud */
.hx-badge-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.hx-badge-count { color: var(--hx-fg-faint); font-variant-numeric: tabular-nums; }
.hx-badge-strong { background: var(--hx-bg); color: var(--hx-fg-strong); border-color: var(--hx-border-strong); font-weight: 500; }

/* ---------- Topics ---------- */
.hx-topic-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.hx-topic-card {
  display: flex; flex-direction: column; gap: 6px;
  height: 100%;
  padding: 16px 18px;
  color: inherit;
  text-decoration: none;
  transition: border-color var(--hx-dur), box-shadow var(--hx-dur), transform var(--hx-dur) var(--hx-ease);
}
.hx-topic-card:hover { border-color: var(--hx-border-strong); box-shadow: var(--hx-shadow); transform: translateY(-1px); }
.hx-topic-name { color: var(--hx-fg-strong); font-size: 15.5px; font-weight: 600; }
.hx-topic-desc { color: var(--hx-fg-muted); font-size: 13.5px; line-height: 1.6; }
.hx-topic-count { margin-top: auto; padding-top: 6px; color: var(--hx-fg-faint); font-size: 12.5px; }

/* ---------- Home ---------- */
.hx-home { padding-top: 16px; }
.hx-hero { padding: 8px 0 8px; }
.hx-hero-avatar {
  display: block;
  width: 64px; height: 64px;
  margin: 0 0 20px;
  border: 1px solid var(--hx-border);
  border-radius: 999px;
  object-fit: cover;
  box-shadow: var(--hx-shadow-sm);
}
.hx-hero-title { margin: 0; color: var(--hx-fg-strong); font-size: 34px; line-height: 1.2; letter-spacing: -0.025em; }
.hx-hero-tagline { margin: 10px 0 0; color: var(--hx-fg-strong); font-size: 17px; font-weight: 500; }
.hx-hero-intro { max-width: 600px; margin: 10px 0 0; color: var(--hx-fg-muted); font-size: 15.5px; line-height: 1.75; }
.hx-hero-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; }
.hx-home-section { margin-top: 56px; }

.hx-note-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.hx-note-item {
  display: flex; flex-direction: column; gap: 6px;
  height: 100%;
  padding: 16px 18px;
  color: inherit;
  text-decoration: none;
  transition: border-color var(--hx-dur), box-shadow var(--hx-dur), transform var(--hx-dur) var(--hx-ease);
}
.hx-note-item:hover { border-color: var(--hx-border-strong); box-shadow: var(--hx-shadow); transform: translateY(-1px); }
.hx-note-date { color: var(--hx-fg-faint); font-size: 12px; font-variant-numeric: tabular-nums; }
.hx-note-title { color: var(--hx-fg-strong); font-size: 15px; font-weight: 600; line-height: 1.5; }
.hx-note-desc {
  display: -webkit-box; overflow: hidden;
  color: var(--hx-fg-muted); font-size: 13.5px; line-height: 1.6;
  -webkit-box-orient: vertical; -webkit-line-clamp: 2;
}

/* ---------- Page ---------- */
.hx-page-header { margin: 8px 0 32px; }
.hx-page-title { margin: 0; color: var(--hx-fg-strong); font-size: 32px; line-height: 1.25; letter-spacing: -0.02em; }
.hx-page-subtitle { margin: 10px 0 0; color: var(--hx-fg-muted); }

/* ---------- Post ---------- */
.hx-post-header { margin: 8px 0 32px; padding-bottom: 24px; border-bottom: 1px solid var(--hx-border); }
.hx-post-meta { display: flex; flex-wrap: wrap; gap: 6px; color: var(--hx-fg-muted); font-size: 13px; font-variant-numeric: tabular-nums; }
.hx-post-title { margin: 10px 0 0; color: var(--hx-fg-strong); font-size: 34px; line-height: 1.25; letter-spacing: -0.025em; text-wrap: balance; }
.hx-post-taxonomy { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }

/* TOC */
.hx-toc ol { margin: 0; padding: 0; list-style: none; }
.hx-toc ol ol { padding-left: 12px; }
.hx-toc li { margin: 0; }
.hx-toc a {
  display: block;
  padding: 3px 0 3px 10px;
  border-left: 1px solid var(--hx-border);
  color: var(--hx-fg-muted);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--hx-dur), border-color var(--hx-dur);
}
.hx-toc a:hover { color: var(--hx-fg); }
.hx-toc a.is-active { border-left-color: var(--hx-fg-strong); color: var(--hx-fg-strong); font-weight: 500; }

.hx-toc-details {
  margin: 0 0 28px;
  padding: 10px 14px;
  border: 1px solid var(--hx-border);
  border-radius: var(--hx-radius-lg);
  background: var(--hx-bg-muted);
}
.hx-toc-details summary { cursor: pointer; color: var(--hx-fg-strong); font-size: 14px; font-weight: 600; }
.hx-toc-details[open] summary { margin-bottom: 8px; }
.hx-toc-aside { display: none; }
.hx-toc-label { margin: 0 0 10px; color: var(--hx-fg-strong); font-size: 13px; font-weight: 600; }

@media (min-width: 1200px) {
  .hx-post-layout.has-toc .hx-post { position: relative; }
  .hx-post-layout.has-toc .hx-toc-details { display: none; }
  .hx-post-layout.has-toc .hx-toc-aside {
    display: block;
    position: absolute;
    top: 0; bottom: 0;
    left: 100%;
    width: 210px;
  }
  .hx-post-layout.has-toc .hx-toc-sticky {
    position: sticky;
    top: calc(var(--hx-header-h) + 32px);
    max-height: calc(100vh - var(--hx-header-h) - 64px);
    overflow-y: auto;
  }
}

/* Prev / next */
.hx-post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 56px 0 0; padding-top: 32px; border-top: 1px solid var(--hx-border); }
.hx-post-nav-link {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px;
  color: inherit;
  text-decoration: none;
  transition: border-color var(--hx-dur), box-shadow var(--hx-dur);
}
.hx-post-nav-link:hover { border-color: var(--hx-border-strong); box-shadow: var(--hx-shadow); }
.hx-post-nav-link.is-next { text-align: right; }
.hx-post-nav-label { color: var(--hx-fg-muted); font-size: 12.5px; }
.hx-post-nav-title { color: var(--hx-fg-strong); font-size: 14.5px; font-weight: 600; line-height: 1.5; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .hx-container, .hx-container-wide { padding-left: 16px; padding-right: 16px; }
  .hx-prose { font-size: 16px; }
  .hx-hero-title, .hx-post-title { font-size: 27px; }
  .hx-list-title, .hx-page-title { font-size: 26px; }
  .hx-year-group { grid-template-columns: minmax(0, 1fr); }
  .hx-year { padding: 20px 0 8px; }
  .hx-year-group + .hx-year-group { margin-top: 0; }
  .hx-post-link { margin: 0 -8px; padding: 14px 8px; }
  .hx-note-grid { grid-template-columns: minmax(0, 1fr); }
  .hx-post-nav { grid-template-columns: minmax(0, 1fr); }
  .hx-post-nav-link.is-next { text-align: left; }
  .hx-home-section { margin-top: 44px; }
}